[ https://issues.apache.org/jira/browse/HIVE-26779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhizhen Hou updated HIVE-26779: ------------------------------- Summary: UNION ALL throws SemanticException Exception when trying to remove partition predicates: fail to find child from parent (was: UNION ALL ) > UNION ALL throws SemanticException Exception when trying to remove partition > predicates: fail to find child from parent > ----------------------------------------------------------------------------------------------------------------------- > > Key: HIVE-26779 > URL: https://issues.apache.org/jira/browse/HIVE-26779 > Project: Hive > Issue Type: Bug > Components: Query Processor > Affects Versions: 4.0.0-alpha-2 > Reporter: Zhizhen Hou > Priority: Major > > {quote}Reproduce sql: > drop table if exists tez_test_t1; > create table tez_test_t1(md_exper string); > insert into tez_test_t1 values('tez_test_t1-md_expr'); > drop table if exists tez_test_t5; > create table tez_test_t5(md_exper string, did string); > insert into tez_test_t5 values('tez_test_t5-md_expr','tez_test_t5-did'); > drop table if exists tez_test_t2; > create table tez_test_t2(did string); > insert into tez_test_t2 values('tez_test_t2-did'); > SELECT md_exper,null as ads_h5_gap , null as first_login_did, null as > inclick_did > FROM tez_test_t1 > UNION ALL > SELECT md_exper, ads_h5_gap , > NULL AS first_login_did,did AS inclick_did > FROM tez_test_t5 > LATERAL VIEW explode(split('0,6', ',')) gaps AS ads_h5_gap > UNION ALL > SELECT '' AS md_exper,'0,6' as ads_h5_gap , > did AS first_login_did, NULL AS inclick_did > FROM tez_test_t2 > GROUP BY did; > {quote} > > StackTrace > 2022-11-27T09:31:06,801 ERROR [21d35a7f-9625-46ae-9c3d-13ca925f55cb main]: > ql.Driver (:()) - FAILED: SemanticException Exception when trying to remove > partition predicates: fail to find child from parent > org.apache.hadoop.hive.ql.parse.SemanticException: Exception when trying to > remove partition predicates: fail to find child from parent > at > org.apache.hadoop.hive.ql.exec.Operator.removeChildAndAdoptItsChildren(Operator.java:859) > at > org.apache.hadoop.hive.ql.parse.GenTezUtils.removeUnionOperators(GenTezUtils.java:348) > at > org.apache.hadoop.hive.ql.parse.TezCompiler.generateTaskTree(TezCompiler.java:573) > at > org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:241) > at > org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12333) > at > org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:330) > at > org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:286) -- This message was sent by Atlassian Jira (v8.20.10#820010)